100% Dovecot MTA Replacement Setup

[Michael Slusarz]

> On July 19, 2018 at 9:41 AM David Favor <david at davidfavor.com> wrote:
> 
> 
> Working out upgrade of old 1.x + 2.x Dovecot installs to
> latest 2.3.2.1 out of Ubuntu Bionic repositories.
> _______
> 
> https://wiki.dovecot.org/Services suggests Dovecot can
> be used for full mail infrastructure, avoiding the
> complexity of exim4 or other MTA setup/management.
> 
> Let me know if I understand this correctly.
> 
> 1) https://wiki.dovecot.org/Submission can be used to
>     listen on port 25 + port 587 (with auth).

This is a proxy only.  For any non-local delivery, you still need a submission server to deliver (and queue) mail remotely.  That requires a full SMTP service running somewhere.


> 2) https://wiki.dovecot.org/Pigeonhole can be used for
>     filtering, including forwarding email to other machines.
> 
> 3) https://wiki.dovecot.org/Pigeonhole/ManageSieve/Configuration
>     can be used to forward off machine email, for example flowing
>     through a relay service like MailGun, using a simple script
>     or service like ESMTPD.
> 
> 4) https://wiki.dovecot.org/LMTP can be used to deposit messages
>     into filesystem as Maildir or dbox or mdbox backing stores.

michael